Half to isaac h



( No Model.)

J. A. MAROHBANK.

OAR BRAKE.

No. 392,740. Patented Nov. 13. 1888.

Lawn/19.50 e0 fit/6215609;

NMEU Frames rrrcn.

Farnnr JAMES A. MARCHBANK, OF BOSTON, MASSACHUSETTS, ASSIGNOR OF ONEHALF TO ISAAC H. RANDALL, OF SAME PLACE.

CAR BRAKE.

SPECIFICATION forming part of Letters Patent No. 392,7eo, dated November13, 1888.

Application filed March 5, 1888. Serial No. 266,289.

To 06% whom, it may concern.-

Be it known that I, JAMES A. Mancnnnnn, a citizen of the United States,residing at Boston, in the county of Suffolk and State of Massachusetts,have invented a new and useful Improvement in Car-Brakes, of which thefollowing is a specification, reference being had to the accompanyingdrawings.

The object of my invention-which relates to to brakes for cars,especially street-carsis to dispense with the ordinary brake-beam, andto so construct and arrange certain parts of the brake mechanism as toprovide for more unoccupied or free space under the car than heretofore,whereby the car may pass over large objects which may happen to be onthe railway between the rails, and so that devices conhected with thecar and under the car-body may be readily reached for adjust- 2o ment orrepairs.

My invention consists in the devices and combinations of deviceshereinafter set forth, and specifically pointed out in the claims.

In the drawings, Figure 1 is a plan of so 2 much of a street-carembodying my invention as is necessary for illustration of the same.Fig. 2 is a vertical section taken in the direction of lines 1 in Fig.1, and Fig. 3 an end View. Fig. 4 shows one of the springs F, and Fig. 5

a pair of rods, E.

The brake-lever A may be centrally pivoted, as at a, in the usualmanner, to the common hanger B, supported by the eross'beams C of theframe. Each end of this lever may be 5 connected in the ordinary manner,by means of a rod, b, and chain, with the vertical brakeshaft. At eachside of the pivot to and at suitable distance therefrom I pivot 21connecting piece or link, D, one of these connecting 40 pieces or linksextending toward one end and the other toward the other end of the car,as shown. Secured to the outer end of each of these connecting pieces orlinks are two rods, E E. I prefer to form each pair of rods E as 5 onepiece, and to make a slot, 0, therein where they j oin. Through thisslot extends the connecting piece or link D,which has a screwthread cutthereon to receive two nuts, (2 and (No model.)

6, one on each side of the piece formed by the rods E.

The outer end of each of the rods E is joined to a brake-shoe,preferably by being pivoted thereto, as at f. The brake-shoe may besuspended to swing freely by a link, 9, in the usual manner.

There is a spring, F, for each pair of brakeshoes and rods, which Iprefer to form of sheet metal, bent as shown and fastened at the upperend to a cross-beam, C. It has a slot, h, through which the connectingpiece or link D extends. By pressing against the nut d, and henceagainst the united inner ends of the rods E, the spring acts to carrythe brakeshoes G away from the wheels.

All the brake-shoes are caused to press against the wheels by a pull oneither of the rods bin the usual manner. The vertical slot h in eachspring F permits any necessary vertical movement of the link D and rodsE. The slot 0 permitsthe rods E to swing or have such lateral movementthat each pair of brakeshoes will be caused to press with equal forceagainst their Wheels. A brace, 13, between the rods E, forming a pair,may be employed, if desired, as shown in Fig. 5.

By means of my mechanism not only is the ordinary brake-beam dispensedwith, but the necessary devices for supporting and operating thebrakeshoes may be oflight weight and disposed so that there is much morefree space under the car than heretofore for the purposes hereinbeforcstated, while the brake-shoes may be easily operated and will bearevenly on the wheels.

I claim as my invention-- 1. In a car-brake, the combination of abrake-lever, A, a connecting piece or link, D, pivoted to said lever,and two rods, E E, to the outer end of each of which is pivoted abrake-shoe, substantially as set forth.

2. In a car -brake, the combination of a brake-lever, two rods connectedat their outer ends to two brake-shoes and joined at their inner ends toform one piece, a connecting piece or link pivoted at one end to saidlever and connected at the other end to said rods,

as by means of a slot, 0, and nuts (1 and 0, I between said rods andlever, and a spring, whereby a lateral or swinging movement of F,substantially as and for the purposes set the rods is permitted,substantially as and for I forth. the purposes set forth. I JAMES A.,MAROHBANK.

3. The combination of a brake-lever, A, "Witnesses: two rods, E E,having brake-shoes connected I W. E. WOODWARD, therewith, a connectingpiece or link, D, EDW. DUMMER.

